public static UnsignedShort fromBytes(byte[] c, int idx) {
UnsignedShort number = new UnsignedShort();
if ((c.length - idx) < 2) {
throw new IllegalArgumentException("An UnsignedShort number is composed of 2 bytes.");
}
number.value = ((c[0] << 8) | (c[1] & 0xFFFF));
return number;
}
/**
* Convert the packet instance into a {@link IoBuffer} ready to be sent.
*
* @return a new IoBuffer
*/
public IoBuffer toByteBuffer() {
int packetSize = 12 + csrc.length * 4 + payload.length;
if (extension) packetSize += headerExtension.length;
IoBuffer buffer = IoBuffer.allocate(packetSize);
buffer.limit(packetSize);
byte c = 0x00;
int bPadding = padding ? 1 : 0;
int bExtension = extension ? 1 : 0;
c = (byte) ((version << 6) | (bPadding << 5) | (bExtension << 4) | csrcCount);
buffer.put(c);
int bMarker = marker ? 1 : 0;
c = (byte) ((bMarker << 7) | payloadType.intValue());
buffer.put(c);
buffer.put(sequence.getBytes());
buffer.put(timestamp.getBytes());
buffer.put(ssrc.getBytes());
for (byte i = 0; i < Math.min(csrcCount, csrc.length); i++) {
buffer.put(csrc[i].getBytes());
}
// Write the extension header if present
if (extension) {
buffer.putShort(profileExtension);
buffer.putShort((short) headerExtension.length);
buffer.put(headerExtension);
}
buffer.put(payload);
buffer.rewind();
return buffer;
}
public static UnsignedShort fromString(String c, int radix) {
UnsignedShort number = new UnsignedShort();
long v = Integer.parseInt(c, radix);
number.value = (int) (v & 0xFFFF);
return number;
}